It's weird you can even queue for that.
And yeah I guess it's not the same for everyone on 45 skills. Hell I don't think my Blademaster got any skills at 45. In fact now that I think about it I think my BM had all the skills by like 32 or some shit? Shoulder Charge was the last one. Meanwhile KFM kept getting small shit every now and then like Grapple moves and stuff and even the C and V were like lvl 36 or 38.
And then at 45 what you get basically is a really annoying to use massive damage buff, Searing Palm. It's a 10secs buff that has 4stages, you need to reapply it before it wears off to reset the timer and move a stage, which would be pretty easy only that you can only apply it after certain moves, which makes it a pain in the ass to stack. But once it's stacked you have 100% crit and 50%crit dmg or something dumb, so you kinda need to do it. Best part is having fuckers knock the mobs in the air just as you use one of the prereq skill or the skill itself and make it all fuck up. And you obviously you have to do that shit while tanking, so you still need to pay attention to the boss not just your cooldowns/timers, and if you hit a tight window to reapply(for example hellfire kick has a 9secs cooldown so you can hellfire > searing palm > hellfire > searing palm, but the window is super small) and have to dodge/block at that time, you're fucked again.
Once it activates on last tier though, shit's hilarious. I use a build that also resets the cooldown generally by the time it wears off, so I can sustain it the entire time, barring issues in reapplying, which happens quite a lot with bosses switching phases and what not.
I still have to dip my toe in PvP stuff on this char though.